

A174200


The sequence of numbers which, when entered on a standard telephone numeric keypad, produce the letters a thru z. Letters are accessed by one or more presses of a single key.


0



2, 22, 222, 3, 33, 333, 4, 44, 444, 5, 55, 555, 6, 66, 666, 7, 77, 777, 7777, 8, 88, 888, 9, 99, 999, 9999
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OFFSET

1,1


COMMENTS

Method of entry commonly used on cellular telephones for textmessaging. Not the sequence of az used in telephone numbers.


LINKS



EXAMPLE

To generate the letter 'a', type '2', to generate 'b', type '2' twice, or '22'.


CROSSREFS



KEYWORD

nonn,fini,full


AUTHOR

Adam Risi (ajrisi(AT)gmail.com), Mar 11 2010


EXTENSIONS



STATUS

approved



